Bypassing H/W FW

[rOadToIS]

Is it possible to bypass hardware firewall such as the one included in conventional router?

[alex_s]

-{ Quote: "Is it possible to bypass hardware firewall such as the one included in conventional router?" }-

Depends on "bypass" definition. HW firewall has not process-dependent filtering, so any program can bypass it if its traffic fits HW FW rules. But I don't think it is possible to bypass HW FW rules.

[rOadToIS]

So it's possible to bypass even hardware firewall to discover open ports?

[funkydude]

-{ Quote: "So it's possible to bypass even hardware firewall to discover open ports?" }-

This sentence doesn't really make sense, if you've bypassed it you've discovered an open port and somehow managed to get it to accept your data. Good luck with that! :P

[rOadToIS]

I was asking if it was POSSIBLE to bypass the hardware firewall since you can't find any open ports without bypassing it.

[Pedro]

That's actually not how it goes.

If you want to learn a bit more on networking and firewalls, this tutorial did it for me, at least got me started really well:
http://www.urs2.net/rsj/computing/kerio/index.html
Do the PRELIMINARIES, ie, read up on the terms listed there.

It's a Kerio 2.1.5 tutorial, but the sequence - learning networking concepts - tweaking kerio - observing and answering firewall prompts for browsers, IM clients, P2P etc. provided me a good overview of it all, without needing to be an expert (you don't become one either, note).

[rOadToIS]

Thanks for the resource.